Old Mystic, CT Demographics

Population 510 · Census ACS 2020–24

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Old Mystic, CT map of median age by neighborhood
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Population and households in Old Mystic

Household size in Old Mystic

Household size, people per household
PeriodOld MysticConnecticutU.S.
2006–102.442.572.68
2010–142.312.612.73
2015–192.342.572.71
2020–242.172.552.65
Change−0.28−0.02−0.03
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Households in Old Mystic are small: just 2.17 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Household size has dropped from 2.44 in 2006–10, but in a place this small, survey estimates can swing a lot from one release to the next.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Old Mystic

Median age, years
PeriodOld MysticConnecticutU.S.
2006–1047.940.037.7
2010–1446.241.038.6
2015–1946.042.039.6
2020–2448.042.140.1
Change+0.1+2.1+2.3
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Old Mystic skews older: half of its residents are older than 48.0, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Old Mystic

Single-parent households, % of households
PeriodOld MysticConnecticutU.S.
2006–105.0%11.2%12.3%
2010–148.7%11.6%12.3%
2015–196.3%10.8%11.6%
2020–244.6%11.4%11.6%
Change−0.4 pts+0.2 pts−0.6 pts
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Single parents head only 4.6% of households in Old Mystic, well below the national share of 11.6%.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Old Mystic

Renters in Old Mystic

Renters, % of occupied homes
PeriodOld MysticConnecticutU.S.
2006–1010.1%30.8%33.3%
2010–1419.1%32.7%35.6%
2015–1910.3%33.9%36.0%
2020–247.7%33.5%34.8%
Change−2.4 pts+2.7 pts+1.5 pts
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Old Mystic is overwhelmingly a place of homeowners: only 7.7% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 45.3% have no mortgage at all, above the national share of 39.8%.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Old Mystic

Vacant homes, % of all homes
PeriodOld MysticConnecticutU.S.
2006–1010.0%8.8%11.4%
2010–1417.8%9.5%11.4%
2015–1911.4%10.2%11.1%
2020–2411.2%7.9%9.6%
Change+1.1 pts−0.9 pts−1.8 pts
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Vacancy runs a little high in Old Mystic: 11.2% of homes are empty, against 9.6% nationally. The count includes vacation homes and homes between owners or tenants, not just abandoned ones.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Old Mystic

Age of homes, median year built
PeriodOld MysticConnecticutU.S.
2006–10197919631974
2010–14198019641975
2015–19198419641977
2020–24198219671980
Change+3+4+6
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The typical home in Old Mystic was built around 1982, about the same vintage as the country's housing overall (1980). Homes here are newer than in Connecticut as a whole, where the median home dates to 1967.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Old Mystic

Rent, per month
PeriodOld MysticConnecticutU.S.
2006–10$1,351$1,127$965
2010–14$1,181$1,218$1,040
2015–19$1,489$1,380$1,213
2020–24$1,379$1,702$1,571
Change+$28+$575+$606
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Rent in Old Mystic runs $1,379 a month at the median, utilities included, below the U.S. median of $1,571. Rent takes 27.7% of the typical renter's income, just under the 30% mark often used to define affordable rent.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Old Mystic

Bachelor's degrees in Old Mystic

Bachelor's degrees, % of adults 25+
PeriodOld MysticConnecticutU.S.
2006–1039.2%35.5%28.4%
2010–1456.5%37.0%29.6%
2015–1948.2%39.2%32.1%
2020–2452.4%42.3%35.6%
Change+13.1 pts+6.8 pts+7.2 pts
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Old Mystic is highly educated: just over half of adults 25 and older (52.4%) hold at least a bachelor's degree, far above the national share of 35.6%.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Old Mystic

High school graduates, % of adults 25+
PeriodOld MysticConnecticutU.S.
2006–1095.0%88.1%84.9%
2010–1498.4%89.2%86.1%
2015–1998.0%90.4%87.7%
2020–2497.5%91.2%89.3%
Change+2.5 pts+3.1 pts+4.3 pts
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Finishing high school is nearly universal in Old Mystic: 97.5% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Old Mystic

Unemployment, % of the labor force
PeriodOld MysticConnecticutU.S.
2006–106.3%7.8%8.1%
2010–144.1%9.7%9.4%
2015–192.3%6.2%5.6%
2020–240.5%5.6%5.4%
Change−5.8 pts−2.1 pts−2.7 pts
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The job market in Old Mystic has been strong: just 0.5% of the labor force was out of work and looking, well below the national rate of 5.4%. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Old Mystic compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Old Mystic2.1748.04.6%7.7%11.2%1982$1,37952.4%97.5%0.5%
Mystic2.2751.85.8%20.3%10.6%1970$1,90652.4%97.7%3.1%
Stonington2.0358.49.6%22.7%15.6%1964$1,78361.1%98.5%4.6%
Ledyard2.8139.519.6%16.2%3.9%1973$1,31137.7%96.4%1.3%
Noank2.2250.83.4%20.4%13.8%1961$1,44861.6%98.0%1.4%
Wequetequock2.3046.715.4%14.4%8.8%1973$2,22956.5%96.6%4.2%
Pawcatuck2.1945.39.1%32.3%6.2%1964$1,44443.8%95.3%3.8%
North Stonington2.5149.97.2%7.2%10.9%1973$1,29853.8%98.2%2.2%
Groton2.1239.111.9%50.1%9.5%1971$1,42438.8%92.7%5.6%
Groton Long Point2.0066.33.4%8.9%48.0%1971$2,75079.2%99.0%5.5%
Conning Towers Nautilus Park2.7627.717.1%80.4%8.8%1982$1,85128.3%97.2%6.2%

All figures 2020–24.

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About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Old Mystic. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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